The most important features of a Command Panzer were its radios and advanced intercom. Amusing Hobby don't give us the intercom in this kit, but they do provide appropriate radio sets.
As far as I am aware, the locations of the radios in this tank are not known, except that they must have been somewhere in the hull (because the antennas are on the hull). We also know that the tank had a radio operator's seat at its front right-hand corner. The standard version of the tank would have had a radio there, but that does not tell us about this one-off Command version.
The Fu 5 radio
Amusing Hobby give us a good depiction of the Fu 5 radio, with receiver and transmitter in a suspension frame under the tank's glacis plate. Although we don't know where the real Fu 5 was, this is a very plausible location. In fact the first Panzer III had their Fu 5 exactly here.
But the surroundings of the kit's radio are not quite right. Amusing Hobby don't understand that the fixtures on the side of the radio are shock absorbers. In the kit, a supporting panel is put between them, but in reality it would be on the outside - like this example.
One enhancement that you could add here is a small adapter box on the antenna lead. We don't know exactly where this box was, but it must have been near to the antenna socket on the transmitter, at the top right-hand corner of the radio set. Here is one such box in a Panzer III. In this case the radio set is down to the left of the image.
The Fu 2 radio
Amusing Hobby have provided a Fu 2 radio (a single receiver) to the left of the radio operator's position. It is circled in this photo of their model.
But it makes no sense to have this type of radio in this tank. It was often present in ordinary Panzers, especially platoon leaders, but not in Command tanks - and this is a Command tank.
You can improve the realism of the model by omitting that radio, and also omit its power supply, which is the box circled here.
The Fu 7 radio
A Command tank would carry a long-range radio. There was a choice of either the Fu 7 or the Fu 8. We have photographs of the antennas on this tank, number "003", and they imply that the Fu 7 was inside it (on the day of the photograph at least).
Amusing Hobby give us a neat rendition of the Fu 7. Here is their model. They should be congratulated for choosing the correct radio, at a time when other manufacturers are failing to do so.
But they put the radio devices sitting in a kind of a tray, which is wrong. The Germans always mounted radios in frames, attached to stands via the rubber shock absorbers mentioned earlier. Here is a radio set in a Stug. The stands and shock absorbers (arrowed) are visible.
While the support stands are a fine detail, there is a much larger issue with this radio set. The location of this long-range radio set within Tiger "003" is not recorded. Amusing Hobby have put it in the left-hand rear ammunition bay, but there is little reason to think that they are correct.
Command Panzers generally had a radio operator for each of their radio sets. In the Henschel Tiger, the loader was the second radio operator. His set was in the turret, which is not the case with Tiger "003", But if "003" had its Fu 7 on the right-hand side of the hull, then the loader could operate it in the usual way.
Another possibility is that the added radio (the Fu 7) was somehow squeezed into the forward hull and the tank's original radio operator served both sets. But that is not how other Command Panzers were laid out.
Ultimately, we do not know where this radio set was located, except that it was in the hull. The modeller is free to make their own decision.